22659613 has 2 divisors, whose sum is σ = 22659614. Its totient is φ = 22659612.

The previous prime is 22659607. The next prime is 22659617. The reversal of 22659613 is 31695622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15784729 + 6874884 = 3973^2 + 2622^2 .

It is a cyclic number.

It is not a de Polignac number, because 22659613 - 2²¹ = 20562461 is a prime.

It is a super-2 number, since 2×22659613² = 1026916122619538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22659617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11329806 + 11329807.

It is an arithmetic number, because the mean of its divisors is an integer number (11329807).

Almost surely, 2^22659613 is an apocalyptic number.

It is an amenable number.

22659613 is a deficient number, since it is larger than the sum of its proper divisors (1).

22659613 is an equidigital number, since it uses as much as digits as its factorization.

22659613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 22659613 is about 4760.2114448835. The cubic root of 22659613 is about 282.9767989071.

The spelling of 22659613 in words is "twenty-two million, six hundred fifty-nine thousand, six hundred thirteen".